PDB-C152SMF Equivalent & Substitute Parts

Part Overview

The PDB-C152SMF is a 660nm photodiode sensor manufactured by Advanced Photonix in 1206 (3216 Metric) surface mount packaging. This component is classified as obsolete, making substitute part identification essential for ongoing design support and procurement continuity. The 660nm wavelength positions this device for red-light sensing applications requiring fast response characteristics and moderate active area specifications.

Substiute Parts

PDB-C152SMF

Advanced PhotonixIn Stock: 1081PDB-C152SMF Datasheet

Current PartRFQ

PDB-C165

Advanced PhotonixIn Stock: 1166PDB-C165 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The PDB-C165 is identified as a manufacturer-recommended substitute for the PDB-C152SMF. Substitution eligibility is determined by the following criteria:

Allowed Substitution Parameters:

• Diode Type: PIN (maintained)
• Mounting Type: Surface Mount (maintained)
• Spectral Range Overlap: Both devices operate within 400nm–1100nm range, with PDB-C165 extending to 350nm minimum
• Operating Temperature Compatibility: PDB-C165 range (-40°C to 80°C) encompasses the critical lower bound of the original specification
• Manufacturer: Advanced Photonix (same source)

Critical Differences Noted:

• Wavelength shift from 660nm to 950nm represents a functional change in spectral response
• Package format changes from 1206 to 2-SMD, No Lead configuration
• Active area increases from 1.66mm² to 8.53mm²
• Response time improves from 50ns to 13ns
• RoHS compliance status changes from non-compliant to compliant

Parameter Comparison

Engineering Selection Recommendations

The PDB-C165 is designated as the manufacturer-recommended substitute and is currently in active production status, ensuring long-term availability and supply chain stability. The original PDB-C152SMF is obsolete, eliminating it as a viable procurement option for new designs or ongoing production.

Selection of the PDB-C165 requires validation against application-specific requirements due to the wavelength shift from 660nm to 950nm. This change affects spectral sensitivity and may impact optical system performance depending on the light source and detection requirements of the end application.

The PDB-C165 offers improved electrical performance characteristics: faster response time (13ns vs. 50ns), lower dark current (1nA vs. 2nA), and higher reverse voltage rating (75V vs. 50V). RoHS compliance status improves from non-compliant to compliant, supporting regulatory requirements in restricted substance applications.

Package format change from 1206 to 2-SMD, No Lead requires PCB layout and assembly process verification. The increased active area (8.53mm² vs. 1.66mm²) may affect optical coupling efficiency and viewing angle characteristics in existing mechanical designs.

Frequently Asked Questions (FAQ)

Q: Can the PDB-C165 directly replace the PDB-C152SMF in existing designs?

A: Direct replacement requires application validation. The wavelength shift from 660nm to 950nm is a functional change that affects spectral response. Package format change from 1206 to 2-SMD, No Lead requires PCB layout modification. Electrical performance improvements (faster response, lower dark current) are generally beneficial but must be confirmed against system requirements.

Q: What are the key compatibility considerations?

A: Compatibility depends on three factors: (1) wavelength sensitivity of the optical system—the 950nm shift may require light source adjustment; (2) PCB layout and assembly capability for 2-SMD, No Lead packaging; (3) operating temperature range—the PDB-C165 upper limit is 80°C versus 85°C for the original part.

Q: Why is the wavelength different between these parts?

A: The PDB-C165 is a different optical sensor variant within the Advanced Photonix photodiode product line. Manufacturer substitution recommendations account for functional equivalence within the broader product family, but wavelength selection remains application-dependent.

Q: Is the PDB-C165 RoHS compliant?

A: Yes. The PDB-C165 is RoHS compliant, whereas the PDB-C152SMF is non-compliant. This compliance improvement supports regulatory requirements in restricted substance applications.

Q: What is the impact of the larger active area?

A: The PDB-C165 active area is 8.53mm² compared to 1.66mm² for the PDB-C152SMF. Larger active area typically improves light collection efficiency but may affect optical coupling characteristics and viewing angle performance in existing mechanical designs.